"It's my first day"

Retail ain't for sissies.
To boost my income, as well as my knowledge base, I am working in a knit shop two days a week. The knitting part I know; the retail part I'm a bit rusty on. I haven't worked a cash register since I worked in a shoe store in college -- and back in the day, we pushed buttons and the machine made a ringing sound. The whole computer check-out thing is fine, but the swiping of cards & doling out of correct change is a different thing. It's interesting to broaden one's skill set this far into one's working life. And interesting to say about a hundred times, "Yes, thanks for your patience. It's my first day."
And also: At the newspaper, I sat on my tuckus all day long. At the shop, I stand. All day long. Occasionally, I sit to help a customer with a knitting question, but mostly I stand, stoop, reach, wind (yarn, that is), and generally am up and about. I don't eat, because there's not really time.
I'm actually the go-to crochet person in the shop, what with the book and all. I'll be teaching a few crochet classes a bit later.
But for now, I'm going to go put my feet up.